308 citations · 1.1k across the 33 of their papers we have counts for
33 papers
Classical route to ergodicity and scarring in collective quantum systems
Sudip Sinha, Sayak Ray, Subhasis Sinha
Ergodicity, a fundamental concept in statistical mechanics, is not yet a fully understood phenomena for closed quantum systems, particularly its connection with the underlying chao…
Classical route to ergodicity and scarring phenomena in a two-component Bose-Josephson junction
Debabrata Mondal, Sudip Sinha, Sayak Ray +2
We consider a Bose-Josephson junction (BJJ) formed by a binary mixture of ultracold atoms to investigate the manifestation of coherent collective dynamics on ergodicity and quantum…
Fingerprint of chaos and quantum scars in kicked Dicke model: An out-of-time-order correlator study
Sudip Sinha, Sayak Ray, Subhasis Sinha
We investigate the onset of chaos in a periodically kicked Dicke model (KDM), using the out-of-time-order correlator (OTOC) as a diagnostic tool, in both the oscillator and the spi…
Dissipation-induced symmetry breaking: Emphanitic transitions in lead- and tin-containing chalcogenides and halide perovskites
Kingshuk Mukhuti, Sudip Sinha, Subhasis Sinha +1
Lead and tin-based chalcogenide semiconductors like PbTe or SnSe have long been known to exhibit an unusually low thermal conductivity that makes them very attractive thermoelectri…
Phases and collective modes of bosons in a triangular lattice at finite temperature: A cluster mean field study
M. Malakar, S. Ray, S. Sinha +1
Motivated by the realization of Bose-Einstein condensates (BEC) in non-cubic lattices, in this work we study the phases and collective excitation of bosons with nearest neighbor in…
Dynamics of quasiperiodically driven spin systems
Sayak Ray, Subhasis Sinha, Diptiman Sen
We study the stroboscopic dynamics of a spin- object subjected to -function kicking in the transverse magnetic field which is generated following the Fibonacci sequence. The…